JOURNAL OF GEOLOGICAL SOCIETY OF THE PHILIPPINES
Distribution of Iron, Alumina, and Silica, in the Pujada Laterite of Mati, Davao Province, Mindanao Island, Philippines by L. SantosYnigo: : Aluminous Lateritic Soil of the Lutawon Basin Area,Nonoc Island, Surigao Province, Philippines by F. B. Esguerra